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Table 2 Observed rates of change (means, SDs) for fatness and fitness outcomes across the study timepoints.

From: Changes in fitness and fatness in Australian schoolchildren during the summer holidays: fitness lost, fatness regained? A cohort study

 

T1

Start of Holidays

End of Holidays

T5

∆T1-Start

∆Start-End

∆End-T5

%BF

23.0

23.8

24.2

24.3

+ 1.0

+ 3.6

+ 0.2

n = 133

(8.3)

(8.1)

(8.9)

(8.4)

(3.8)

(21.6)

(4.1)

zBMI

0.62

0.63

0.67

0.67

+ 0.02

+ 0.32

+ 0.00

n = 127

(1.16)

(1.15)

(1.22)

(1.14)

(0.45)

(2.69)

(0.42)

Waist:Ht%

45.0

44.8

44.77

44.6

–0.4

–0.7

–0.2

n = 129

(5.8)

(5.9)

(6.5)

(5.9)

(4.0)

(2.6)

(4.3)

VO2max

44

44.2

43.3

42.8

+ 0.1

–3.7

–0.7

n = 132

(3.2)

(4.2)

(4.0)

(3.9)

(4.2)

(17.2)

(4.4)

SBJ

128.5

130.5

133.1

140.5

+ 2.2

+ 9.1

+ 5.8

n = 156

(19.9)

(22.3)

(23.3)

(22.1)

(19.0)

(124.1)

(18.6)

  1. %BF = percentage body fat; ∆T1-start = annualised rate of changed from T1 to start of holidays; ∆Start-End = annualised rate of change from start to end of holidays; ∆End-T5 = annualised rate of change from end of holidays to T5; SBJ = standing broad jump (cm); T1 = timepoint 1 (February-April); T5 = timepoint 5 (November-December); V̇O2max = maximal aerobic power (ml/kg/min); Waist:Ht% = waist-to-height ratio (as a percentage); zBMI = BMI z-score